Feeding chiefly on fish, the great black-billed gull has been known to feed on small birds.
S. G. Goodrich Animal Kingdom Illustrated Vol 2 (New York, NY: Derby & Jackson, 1859)
2441×2400, 3.4 MiB
1024×1006, 391.1 KiB
640×629, 168.0 KiB
320×314, 43.4 KiB